[Error] 
Call to undefined method Bitrix\Main\IO\Directory::isDirectoryExists() (0)
/home/galserru201612/www/bitrix/modules/main/lib/ui/extension.php:74
#0: Bitrix\Main\UI\Extension::getConfig(string)
	/home/galserru201612/www/bitrix/modules/main/lib/ui/extension.php:31
#1: Bitrix\Main\UI\Extension::register(string)
	/home/galserru201612/www/bitrix/modules/main/tools.php:4868
#2: CJSCore::_loadExt(string, boolean)
	/home/galserru201612/www/bitrix/modules/main/tools.php:4918
#3: CJSCore::_loadExt(string, boolean)
	/home/galserru201612/www/bitrix/modules/main/tools.php:4598
#4: CJSCore::Init()
	/home/galserru201612/www/bitrix/modules/conversion/lib/internals/handlers.php:296
#5: Bitrix\Conversion\Internals\Handlers::onProlog()
	/home/galserru201612/www/bitrix/modules/main/classes/general/module.php:490
#6: ExecuteModuleEventEx(array)
	/home/galserru201612/www/bitrix/modules/main/classes/general/main.php:3481
#7: CAllMain::PrologActions()
	/home/galserru201612/www/bitrix/modules/main/include/prolog_before.php:16
#8: require_once(string)
	/home/galserru201612/www/bitrix/modules/main/include/prolog.php:10
#9: require_once(string)
	/home/galserru201612/www/bitrix/header.php:1
#10: require(string)
	/home/galserru201612/www/catalog/index.php:1
#11: include_once(string)
	/home/galserru201612/www/bitrix/modules/main/include/urlrewrite.php:159
#12: include_once(string)
	/home/galserru201612/www/bitrix/urlrewrite.php:2

Fatal error: Uncaught Error: Call to undefined method Bitrix\Main\IO\Directory::isDirectoryExists() in /home/galserru201612/www/bitrix/modules/main/lib/analytics/sitespeed.php:65 Stack trace: #0 /home/galserru201612/www/bitrix/modules/main/lib/analytics/sitespeed.php(87): Bitrix\Main\Analytics\SiteSpeed::isRussianSiteManager() #1 /home/galserru201612/www/bitrix/modules/main/lib/analytics/counter.php(88): Bitrix\Main\Analytics\SiteSpeed::isOn() #2 /home/galserru201612/www/bitrix/modules/main/classes/general/module.php(490): Bitrix\Main\Analytics\Counter::onBeforeEndBufferContent() #3 /home/galserru201612/www/bitrix/modules/main/classes/general/main.php(3161): ExecuteModuleEventEx(Array, Array) #4 [internal function]: CAllMain->EndBufferContent('<pre>[Error] \nC...', 9) #5 /home/galserru201612/www/bitrix/modules/main/classes/general/main.php(3413): ob_end_flush() #6 [internal function]: CAllMain::{closure}() #7 {main} thrown in /home/galserru201612/www/bitrix/modules/main/lib/analytics/sitespeed.php on line 65